【作者】 赵磊； 王龙阁； 王娟； 王艳； 陈玉霞； 黄明举；

【Author】 Zhao Lei 1 Wang Longge 1 Wang Juan 2 Wang Yan 1 Chen Yuxia 1 Huang Mingju,1 (1 Institute of Photon and Optoelectronics Technique,College of Physics and Electronics,Henan University,Kaifeng,Henan 475004,china) (2 Key Lab For Special Functional Materials,Ministry of Education,Henan University,Kaifeng,Henan 475004,china)

【机构】 河南大学光学与光子技术研究所,河南大学物理与电子学院； 河南大学特种功能材料教育部重点实验室；

【摘要】 研究了一种掺杂亲水性纳米氢氧化镁颗粒的丙烯酰胺基光致聚合物厚膜的全息存储特性。用Ar+激光器514nm波长的光对材料进行曝光,实验结果表明,在丙烯酰胺基光致聚合物全息材料中掺入氢氧化镁纳米粒子,不仅有效的提高了材料曝光记录过程中的维度稳定性,抑制材料的体积缩皱,而且衍射效率和其他全息性能参数都有了一定的改善。同时存在一个最佳的掺杂浓度,使得材料的最大衍射效率可以达到93.7%,最大折射率调制度达到2.13×10-3,样品缩皱率减少为1.61%。将模拟图像存入样品,得到的透射图像和衍射再现图像的保真度较高。所有这些结果表明,将亲水性氢氧化镁纳米粒子分散在丙烯酰胺基光致聚合物中是一种改善材料全息性能的好方法。更多还原

【Abstract】 Holographic storage characteristics of the hydrophilic Mg(HO) 2 nanoparticle-dispersed acrylamide based thick photopolymer are studied.It is illuminated under the incident wavelength of 514nm of Ar + laser.The experimental results show that,not only the samples dimensional stability can be improved and the volume shrinkage during the holographic exposure can be suppressed by the inclusion of the nanoparticles,but also the diffraction efficiency and other performance parameters can be improved in the hydrophilic Mg(HO) 2-nanoparticles dispersed photopolymer compared with those traditional samples.There exists the optimum concentration of Mg(HO) 2-nanoperticals that the maximum diffraction efficiency to be 93.7%,the maximum refractive index modulation to be 2.13×10-3 and volume shrinkage reduced to 1.61%.The analog image is stored in the materials and transmittance and reconstructed holograms have good fidelity.All of the results demonstrate that the Mg(HO) 2-nanopartical dispersed acrylamide based photopolymers has a good way of improving the holographic performance.更多还原